A pinball, base assembly mechanism

Abstract

The utility model relates to motor assembly technical field, especially a kind of marble, base assembly mechanism, including marble feeding device, base feeding device, pusher, marble press-in device, transplanting mechanism, the marble feeding device is connected with marble bin intercommunication, the base feeding device is connected with assembly seat intercommunication, the pusher pushes the base in base feeding device into assembly seat, the marble press-in device is pressed into base in marble feeding device to form marble base assembly body, the transplanting mechanism is transplanted to bearing on rotating station in the marble base assembly body of well-assembled and through the assembly body press-in detection component installed on transplanting mechanism marble base assembly body is pressed into bearing. The utility model can complete the assembly of marble and base, and can assemble marble base assembly body with bearing on rear end cover, improve the efficiency and precision of assembly.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to a ball and base assembly mechanism. Background Technology

[0002] During motor assembly, the ball bearings need to be assembled into the base and then into the bearing in the rear cover. In the existing technology, this is done manually, which is not only inefficient but also prone to errors, thus affecting subsequent assembly. Utility Model Content

[0003] This utility model solves the problems in related technologies and proposes a ball and base assembly mechanism. The ball and base are fed by a feeding device and assembled by pressing them in with a cylinder. They are then transferred into the bearing on the rear end cover and pressed into the bearing by an assembly pressing detection component, thereby completing the assembly and improving the efficiency and accuracy of the assembly.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a marble and base assembly mechanism, including a marble feeding device, a base feeding device, a pushing device, a marble pressing device, and a transfer mechanism. The marble feeding device is connected to a marble hopper, and the base feeding device is connected to an assembly base. The pushing device pushes the base in the base feeding device into the assembly base. The marble pressing device presses the marble in the marble feeding device into the base to form a marble base assembly. The transfer mechanism transfers the assembled marble base assembly to a bearing on a rotating station and presses the marble base assembly into the bearing through an assembly pressing detection component installed on the transfer mechanism.

[0005] As a preferred embodiment, the system also includes a base detection and waste removal component, which is installed at the feed end of the assembly base. The base detection and waste removal component includes a detection head and a waste removal partition. The detection head is driven by a detection head driving mechanism to press down for detection, and the waste removal partition is driven by a partition driving mechanism to cover or expose the waste removal opening on the assembly base.

[0006] As a preferred embodiment, the system also includes a blocking assembly, which includes a blocking rod driven by a blocking cylinder. The blocking assembly includes two sets of ball blocking assemblies and two sets of base blocking assemblies. The two ball blocking assemblies are installed on both sides of the ball hopper, and the two base blocking assemblies are installed on both sides of the mounting base.

[0007] As a preferred embodiment, the assembly pressing detection component includes a pressure rod and a pressure rod driving mechanism connected to each other. The pressure rod driving mechanism drives the pressure rod to press down and press the ball bearing base assembly into the bearing.

[0008] As a preferred embodiment, the system also includes a negative pressure lifting mechanism, which includes a push rod, a first fiber optic sensor, and a negative pressure suction head. The push rod is located on one side of the assembly base and is used to push the ball base assembly into the negative pressure suction head. The negative pressure suction head is mounted on the transplanting mechanism, and the pressure rod is located inside the negative pressure suction head.

[0009] As a preferred embodiment, the transplanting mechanism includes a first cylinder module and a second cylinder module that are vertically and slidably connected, and the pressure rod and the negative pressure suction head are mounted on the first cylinder module.

[0010] As a preferred embodiment, the system also includes a transplanting robot, which comprises a drive motor, a swing arm, a cam, a first guide rail, and a second guide rail. One end of the swing arm is connected to the drive motor, and the other end is mounted in a U-shaped groove on a cam plate via a cam. The first and second guide rails are vertically arranged and slidably connected. The second guide rail is slidably connected to the cam. The electric suction cup assembly is mounted on the first guide rail via a connecting plate. The electric suction cup assembly includes an electric suction cup, a linear bearing, and a buffer assembly. The electric suction cup is connected to the linear bearing via the buffer assembly.

[0011] As a preferred embodiment, the system also includes a waste removal detection mechanism, which comprises a detection cylinder, a detection plate, a waste removal cylinder, a waste removal channel, and a waste collection box. The detection cylinder is located on one side of the rotating station and drives the detection plate to extend to detect the coil. The waste removal channel is located on one side of the rotating station, and the waste removal cylinder kicks the rear end cover located on the waste removal channel into the waste collection box.

[0012] As a preferred embodiment, it also includes a rear cover discharge mechanism located on one side of the waste detection and rejection mechanism. The rear cover discharge mechanism includes a linear drive mechanism and a rear cover steering assembly, and the rear cover steering assembly is slidably mounted on the linear drive mechanism.

[0013] As a preferred embodiment, the rear cover steering assembly includes a steering cylinder, a rack, an indexing assembly, and a support. The steering cylinder drives the rack to move horizontally. The indexing assembly meshes with the rack and rotates under the drive of the rack. The support is slidably connected to the linear drive mechanism and is provided with a plurality of brackets. The brackets are connected to the indexing assembly and a second fiber optic sensor is provided on one side of the brackets.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The ball and base of this utility model are fed by a feeding device and assembled by pressing in with a cylinder, and then transferred into the bearing on the rear end cover. The assembly is completed by pressing in with a pressure rod, thereby improving the assembly efficiency and accuracy; the base detection and rejection mechanism can detect the front and back of the base and reject the base with the receiving groove facing down, and the pressure rod can detect whether the ball base assembly is installed in the bearing. The detection and rejection mechanism can detect and reject the rear end cover that has not installed the coil and ball base assembly, which can ensure the quality of subsequent assembly; the rear end cover discharge mechanism can complete the reversal and discharge of the assembled rear end cover, which is convenient for the next process; the pressure rod of this application can not only realize the assembly of the ball base assembly, but also determine whether the ball base assembly is assembled in the bearing based on its stroke. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the feeding and assembly structure in this utility model;

[0017] Figure 3 This is a structural schematic diagram of the blocking component and the base kick-off mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram showing the positional relationship between the assembly indentation detection component and the negative pressure suction head of this utility model;

[0019] Figure 5 yes Figure 4 AA section view in the middle;

[0020] Figure 6 This is a schematic diagram of the structure of the assembly pressing detection component and the negative pressure suction head of this utility model installed on the transplanting mechanism;

[0021] Figure 7 This is a schematic diagram of the structure of the transplanting robot of this utility model;

[0022] Figure 8 This is a utility model Figure 7 Schematic diagram of the structure at point B;

[0023] Figure 9 This is a schematic diagram of the structure of the waste detection and removal mechanism of this utility model;

[0024] Figure 10 This is a schematic diagram of the rear end cover discharge mechanism of this utility model.

[0025] In the picture:

[0026] 1. Ball feeding device; 2. Base feeding device; 3. Assembly base; 4. Pushing device; 5. Rear end cover; 51. Base; 52. Ball; 53. Bearing; 54. Outlet coil; 6. Ball pressing device; 7. Transfer mechanism; 71. First cylinder module; 72. Second cylinder module; 8. Rotary station; 9. Assembly pressing detection component; 91. Pressing rod; 92. Pressing rod drive mechanism; 10. Transfer robot; 101. Drive motor; 102. Swing arm; 103. Cam; 104. First guide rail; 105. Second guide rail; 106. Cam plate; 107. U-shaped groove; 108. Electric suction cup assembly; 1081. Electric suction cup; 1082. Linear bearing; 1083. Buffer assembly; 11. Blocking assembly; 111. Blocking... 112. Cylinder, 12. Blocking rod, 13. Negative pressure lifting mechanism, 14. Top rod, 15. First fiber optic sensor, 16. Negative pressure suction head, 17. Waste detection and kicking mechanism, 18. Detection cylinder, 19. Detection plate, 10. Waste kicking cylinder, 11. Waste kicking channel, 12. Waste frame, 13. Rear end cover discharge mechanism, 14. Linear drive mechanism, 14. Rear end cover steering assembly, 14. 15. Steering cylinder, 16. Rack, 17. 18. Indexing assembly, 19. 10. Second fiber optic sensor, 11. 11. Support, 12. Support base, 19. 10. Ball hopper, 11. Base detection and kicking mechanism, 16. Detection head, 16. 16. Waste kicking partition, 16. Detection head drive mechanism, 16. 17. Partition drive mechanism. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0033] like Figures 1 to 10 As shown, a marble and base assembly mechanism includes a marble feeding device 1, a base feeding device 2, a pushing device 4, a marble pressing device 6, a transfer mechanism 7, and an electric suction cup assembly 108. Both the marble feeding device 1 and the base feeding device 2 can employ vibration feeding. The feeding groove in the marble feeding device 1 is located above the feeding groove in the base feeding device 2, ensuring that the marble 52 is fed above the base 51, facilitating subsequent pressing of the marble 52 into the base 51. The marble feeding device 1 and the marble... The hopper 15 is connected, the base feeding device 2 is connected to the assembly base 3, the pushing device 4 pushes the base 51 in the base feeding device 2 into the assembly base 3, the ball pressing device 6 is a cylinder and presses the ball 52 in the ball feeding device 1 into the base 51 to form a ball base assembly, the transfer mechanism 7 transfers the assembled ball base assembly to the bearing 53 on the rotating station 8 and presses the ball base assembly into the bearing 53 by the assembly pressing detection component 9 installed on the transfer mechanism 7.

[0034] In one embodiment, in order to detect the orientation of the base 51, a base detection and waste removal component 16 is provided at the feed end of the assembly base 3. The base detection and waste removal component 16 includes a detection head 161 and a waste removal partition 162. Since the base 51 has a receiving groove on the side that needs to assemble the ball 52, the detection head 161 is driven to press down by the detection head drive mechanism 163 (which can be a cylinder) to detect the receiving groove. If the receiving groove is detected to be facing upward, the waste removal partition 162 remains stationary and continues to block the waste removal opening. If the receiving groove is detected to be facing downward, the waste removal partition 162 is retracted by the partition drive mechanism 164 (which can be a cylinder), exposing the waste removal opening on the assembly base 3, so that the base 51 falls from the waste removal opening into the corresponding waste bin.

[0035] In one embodiment, to ensure that only one ball 52 and one base 51 pass through at a time, a blocking assembly 11 is provided. The blocking assembly 11 includes two sets of ball blocking assemblies and two sets of base blocking assemblies. The two sets of ball blocking assemblies are installed on both sides of the ball hopper 15 to block the ball 52. The two sets of base blocking assemblies are installed on both sides of the mounting base 3 to block the base 51. Specifically, the blocking assembly 11 includes a blocking cylinder 111 and a blocking rod 112. When the base 51 and the ball 52 need to pass through, the blocking cylinder 111 drives the blocking rod 112 to retract. When the base 51 and the ball 52 do not need to pass through, the blocking cylinder 111 drives the blocking rod 112 to extend, thereby blocking the base 51 and the ball 52.

[0036] In one embodiment, the assembly pressing detection component 9 includes a pressure rod 91 and a pressure rod driving mechanism 92 connected to each other. The pressure rod driving mechanism 92 drives the pressure rod 91 to press down and press the ball bearing base assembly into the bearing 53. The pressure rod 91 can also be used as a probe to detect whether the ball bearing base assembly is installed in the bearing 53. The movement stroke of the pressure rod 91 can determine whether the ball bearing base assembly is installed in the bearing 53.

[0037] In one embodiment, a negative pressure lifting mechanism 12 is provided for transferring the marble base assembly. The negative pressure lifting mechanism 12 includes a push rod 121, a first fiber optic sensor 122, and a negative pressure suction head 123. The first fiber optic sensor 122 is installed at the end of the assembly base 3 away from the base feeding device 2 and is used to detect whether the marble base assembly has reached below the negative pressure suction head 123. When it is below the negative pressure suction head 123, the push rod 121 at the bottom of the assembly base 3 pushes the marble base assembly into the negative pressure suction head 123. The negative pressure suction head 123 is installed on the transfer mechanism 7, thereby transferring the marble base assembly into the bearing 53 on the rotating station 8. The pressure rod 91 is located inside the negative pressure suction head 123. The pressure rod 91 is driven by the pressure rod drive mechanism 92 (which can be a cylinder) to press the marble base assembly into the bearing 53 while also detecting it.

[0038] In one embodiment, the transplanting mechanism 7 includes a first cylinder module 71 and a second cylinder module 72 that are vertically and slidably connected. The first fiber optic sensor 122 and the negative pressure suction head 123 are mounted on the first cylinder module 71. The first cylinder module 71 is vertically arranged and can drive the negative pressure suction head 123 and the assembly pressing detection component 9 to descend or rise as a whole. The second cylinder module 72 is horizontally arranged, thereby driving the negative pressure suction head 123 to transfer the picked-up ball base assembly to the rotating station 8.

[0039] In one embodiment, to transfer the assembled rear end cover 5 for the next process, a transplanting robot 10 is also included. The transplanting robot 10 includes a drive motor 101, a swing arm 102, a cam 103, a first guide rail 104, a second guide rail 105, and an electric suction cup assembly 108. One end of the swing arm 102 is connected to the drive motor 101, and the other end is mounted in a U-shaped groove 107 on the cam plate 106 via the cam 103. The first guide rail 104 and the second guide rail 105 are vertically arranged and slidably connected. The second guide rail 105 is slidably connected to the cam 103. The electric suction cup assembly 108 is mounted on the first guide rail via a connecting plate. On the track 104, the drive motor 101 drives the swing arm 102 to move the cam 103 along the U-shaped groove 107, and then drives the electric suction cup assembly 108 to move through the first guide rail 104 and the second guide rail 105, thereby transferring the assembled rear end cover 5 to the next process. The electric suction cup assembly 108 includes an electric suction cup 1081, a linear bearing 1082 and a buffer assembly 1083. The buffer assembly 1083 is a spring sleeved on the guide post. The electric suction cup 1081 is connected to the guide post and the linear bearing 1082 is sleeved on the guide post. In order to maintain the stability of gripping the rear end cover, the guide post can be fixed by a fixing plate.

[0040] In one embodiment, in order to detect whether the output coil 54 is installed on the rear end cover 5 and kick out the rear end cover without the output coil 54, a detection kicking mechanism 13 is provided on one side of the rotary station 8. The detection kicking mechanism 13 includes a detection cylinder 131, a detection plate 132, a kicking cylinder 133, a kicking channel 134, and a waste frame 135. The detection cylinder 131 is located on one side of the rotary station 8 and is connected to the detection plate 132. The detection plate 132 is groove-shaped. The detection cylinder 131 drives the detection plate 132 to extend to detect whether the output coil 54 is installed. If the output coil 54 is not installed, or the pressure rod detects that the ball base assembly is not installed in the bearing, the rear end cover 5 is transferred to the kicking channel 134 located on one side of the rotary station 8 by the electric suction cup 1081 on the transfer robot 10. The kicking cylinder 133 kicks the rear end cover 5 located on the kicking channel 134 into the waste frame 135.

[0041] In one embodiment, a rear cover discharge mechanism 14 located on one side of the waste removal detection mechanism 13 is also included. The transfer robot 10 transfers the assembled rear cover 5 after inspection to the rear cover discharge mechanism 14. The rear cover discharge mechanism 14 includes a linear drive mechanism 141 and a rear cover steering assembly 142. The rear cover steering assembly 142 is driven by the linear drive mechanism 141 to move linearly. Specifically, the rear cover steering assembly 142 is slidably mounted on the linear drive mechanism 141. The rear cover steering assembly 142 reverses the direction of the rear cover 5 transferred to it, and finally is driven by the linear drive mechanism 141 to discharge to the next process.

[0042] In one embodiment, the rear cover steering assembly 142 includes a steering cylinder 1421, a rack 1422, an indexing assembly 1423, and a support 1425. The steering cylinder 1421 drives the rack 1422 to move horizontally. The indexing assembly 1423 meshes with the rack 1422 and rotates under the drive of the rack 1422. The support 1425 is slidably connected to the linear drive mechanism 141, and a plurality of supports 1426 are provided on the support 1425. The supports 1426 are connected to the indexing assembly 1423, and a second fiber optic sensor 1424 is provided on one side of the supports 1426 for detecting the position of the rear cover 5. Then, the transplanting robot 10 transfers the rear cover 5, which has been detected and assembled, to the supports 1426. The steering cylinder 1421 drives the rack 1422, thereby driving the indexing assembly 1423 to rotate, and the supports 1426 also rotates, rotating the rear cover 5 on it by 180°, thereby completing the reversal.

[0043] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A marble and base assembly mechanism, characterized in that: The device includes a ball feeding device (1), a base feeding device (2), a pushing device (4), a ball pressing device (6), and a transfer mechanism (7). The ball feeding device (1) is connected to the ball hopper (15), the base feeding device (2) is connected to the assembly seat (3), the pushing device (4) pushes the base (51) in the base feeding device (2) into the assembly seat (3), the ball pressing device (6) presses the ball (52) in the ball feeding device (1) into the base (51) to form a ball base assembly, and the transfer mechanism (7) transfers the assembled ball base assembly to the bearing (53) on the rotating station (8) and presses the ball base assembly into the bearing (53) through the assembly pressing detection component (9) installed on the transfer mechanism (7).

2. The ball and base assembly mechanism according to claim 1, characterized in that: It also includes a base detection and waste removal component (16), which is installed at the feed end of the assembly base (3). The base detection and waste removal component (16) includes a detection head (161) and a waste removal partition (162). The detection head (161) is driven by a detection head driving mechanism (163) to press down for detection. The waste removal partition (162) is driven by a partition driving mechanism (164) to cover or expose the waste removal port opened on the assembly base (3).

3. The ball and base assembly mechanism according to claim 1, characterized in that: It also includes a blocking assembly (11), which includes a blocking rod (112) driven by a blocking cylinder (111). The blocking assembly (11) includes two sets of ball blocking assemblies and two sets of base blocking assemblies. The two ball blocking assemblies are installed on both sides of the ball hopper (15), and the two base blocking assemblies are installed on both sides of the mounting base (3).

4. The ball and base assembly mechanism according to claim 1, characterized in that: The assembly pressing detection component (9) includes a pressure rod (91) and a pressure rod driving mechanism (92) connected to each other. The pressure rod driving mechanism (92) drives the pressure rod (91) to press down and press the ball base assembly into the bearing (53) for detection.

5. The ball and base assembly mechanism according to claim 4, characterized in that: It also includes a negative pressure lifting mechanism (12), which includes a push rod (121), a first fiber optic sensor (122), and a negative pressure suction head (123). The push rod (121) is located on one side of the mounting base (3) and is used to push the ball base assembly into the negative pressure suction head (123). The negative pressure suction head (123) is installed on the transplanting mechanism (7), and the pressure rod (91) is located inside the negative pressure suction head (123).

6. The ball and base assembly mechanism according to claim 5, characterized in that: The transplanting mechanism (7) includes a first cylinder module (71) and a second cylinder module (72) that are vertically and slidably connected. The pressure rod (91) and the negative pressure suction head (123) are mounted on the first cylinder module (71).

7. The ball and base assembly mechanism according to claim 1, characterized in that: It also includes a transplanting robot (10), which includes a drive motor (101), a swing arm (102), a cam (103), a first guide rail (104), a second guide rail (105), and an electric suction cup assembly (108). One end of the swing arm (102) is connected to the drive motor (101), and the other end is mounted in a U-shaped groove (107) on a cam plate (106) via the cam (103). The first guide rail (104) and the second guide rail (105) are connected to the drive motor (101). Two guide rails (105) are vertically arranged and slidably connected. The second guide rail (105) is slidably connected to the cam (103). The electric suction cup assembly (108) is mounted on the first guide rail (104) through a connecting plate. The electric suction cup assembly (108) includes an electric suction cup (1081), a linear bearing (1082), and a buffer assembly (1083). The electric suction cup (1081) is connected to the linear bearing (1082) through the buffer assembly (1083).

8. The ball and base assembly mechanism according to claim 1, characterized in that: It also includes a waste removal detection mechanism (13), which includes a detection cylinder (131), a detection plate (132), a waste removal cylinder (133), a waste removal channel (134), and a waste frame (135). The detection cylinder (131) is located on one side of the rotating station (8) and drives the detection plate (132) to extend to detect the coil (54). The waste removal channel (134) is located on one side of the rotating station (8), and the waste removal cylinder (133) kicks the rear end cover (5) located on the waste removal channel (134) into the waste frame (135).

9. The ball and base assembly mechanism according to claim 8, characterized in that: It also includes a rear cover discharge mechanism (14) located on one side of the waste removal detection mechanism (13). The rear cover discharge mechanism (14) includes a linear drive mechanism (141) and a rear cover steering assembly (142). The rear cover steering assembly (142) is driven by the linear drive mechanism (141) to move linearly.

10. The ball and base assembly mechanism according to claim 9, characterized in that: The rear cover steering assembly (142) includes a steering cylinder (1421), a rack (1422), an indexing assembly (1423), and a support (1425). The steering cylinder (1421) drives the rack (1422) to move horizontally. The indexing assembly (1423) meshes with the rack (1422) and rotates under the drive of the rack (1422). The support (1425) is slidably connected to the linear drive mechanism (141), and a plurality of supports (1426) are provided on the support (1425). The supports (1426) are connected to the indexing assembly (1423), and a second fiber optic sensor (1424) is provided on one side of the supports (1426).

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